A remote computer access facility uses two dedicated computers outside the firewall. The HID ballast includes a switching network connected to a first bus and a second bus, and is configured to output a high-frequency voltage signal. The discharge port assembly includes at least one fluid guide member mounted at least indirectly to the bowl to define a liquid phase discharge path having no bends or turns, with a circumferential component oriented in opposition to a direction of rotation of the bowl. According to a third aspect an elapsed time from the time when charge condition is changed to a constant voltage mode to the time when charge current becomes times is used. The third and fourth windings are arranged with opposite polarity.